Handle user avatar changes

whatsapp-ext/cmd.go

@@ -0,0 +1,59 @@
+// mautrix-whatsapp - A Matrix-WhatsApp puppeting bridge.
+// Copyright (C) 2018 Tulir Asokan
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package whatsapp_ext
+
+import (
+	"encoding/json"
+	"strings"
+
+	"github.com/Rhymen/go-whatsapp"
+)
+
+type CommandType string
+
+const (
+	CommandPicture CommandType = "picture"
+)
+
+type Command struct {
+	Type CommandType `json:"type"`
+	JID  string      `json:"jid"`
+
+	*ProfilePicInfo
+}
+
+type CommandHandler interface {
+	whatsapp.Handler
+	HandleCommand(Command)
+}
+
+func (ext *ExtendedConn) handleMessageCommand(msgType JSONMessageType, message []byte) {
+	var event Command
+	err := json.Unmarshal(message, &event)
+	if err != nil {
+		ext.jsonParseError(err)
+		return
+	}
+	event.JID = strings.Replace(event.JID, OldUserSuffix, NewUserSuffix, 1)
+	for _, handler := range ext.handlers {
+		commandHandler, ok := handler.(CommandHandler)
+		if !ok {
+			continue
+		}
+		go commandHandler.HandleCommand(event)
+	}
+}

whatsapp-ext/jsonmessage.go

@@ -33,6 +33,7 @@ const (
 	MessageStream   JSONMessageType = "Stream"
 	MessageConn     JSONMessageType = "Conn"
 	MessageProps    JSONMessageType = "Props"
+	MessageCmd      JSONMessageType = "Cmd"
 )
 
 func (ext *ExtendedConn) AddHandler(handler whatsapp.Handler) {
@@ -83,6 +84,8 @@ func (ext *ExtendedConn) HandleJsonMessage(message string) {
 		ext.handleMessageProps(msg[1])
 	case MessageMsgInfo, MessageMsg:
 		ext.handleMessageMsgInfo(msgType, msg[1])
+	case MessageCmd:
+		ext.handleMessageCommand(msgType, msg[1])
 	default:
 		for _, handler := range ext.handlers {
 			ujmHandler, ok := handler.(UnhandledJSONMessageHandler)